Herbs 5-25 cm tall; roots horizontally creeping, branched; stems salmon to white, simple or branched from base. Leaves triangular to narrowly triangular, 2.5-10 mm long. Flowers solitary, 5-merous; calyx tubular, 6-16 mm long, tube 3-7 mm long, slightly keeled, lobes triangular to narrowly triangular, 1.5-8 mm, sinuses obtuse; corolla tube salmon, pink, or white, lobes cream to white, trumpet-shaped, 15-70 mm long, tube cylindric, 12-45 mm long, inner side minutely hairy to papillate, inflated near insertion of stamens, lobes narrowly triangular to linear, initially patent, but soon strongly recurved, 3-30 mm long; stamens inserted 3-6 mm below throat, filaments absent, anthers 0.2-0.5 mm long, apex rounded; ovary narrowly ovoid, 5-8 mm long, provided with 2 glandular marks at base, style 8-30 mm long. Capsule fusiform, 6-10 mm long, indehiscent(?); seeds saccate, 0.1-0.3 mm long.
Guianas present present, NW Brazil present
The Guianas and NW Brazil; 59 collections studied from the Guianas (GU: 3; SU: 18; FG: 38).